Isolated congenital round window absence.
An adult with unilateral round window atresia is presented. With care, CT scanning may be used to demonstrate round window occlusion. Cochlear fenestration resulted in only a modest hearing improvement. Previously reported cases are reviewed.
Clifford
A R
AR
Royal North Shore Hospital, Sydney, Australia.
Fagan
P A
PA
Doust
B D
BD
D000328:Adult; D001299:Audiometry; D005260:Female; D006314:Hearing Loss, Conductive / Q000209:etiology; D006801:Humans; D019736:Prostheses and Implants; D012405:Round Window, Ear / Q000002:abnormalities* / Q000000981:diagnostic imaging; D013201:Stapes Surgery; D014057:Tomography, X-Ray Computed